Here's my main point: If you buy something based off of someone else playing it, especially if it's from a Let's Play, and not a review then the consumer has to keep in mind that there's a possibility it might not be anything like how he's playing it up to be.
If the consumer is disappointed he/she has no one to blame but themselves for taking the chance by placing their faith in the possibility that a game might turn out the same as how their favorite LPer showed it.
Quote: Exactly. The take home lesson here is 'Don't give it to someone if you don't know, or don't like, the way they're going to present it'. Don't give the game to someone who is going to interpret it in a manner completely contrary to the way you want it read by the target audience. This is a no brainer.
If a consumer misreads it though it is still falls upon themselves that they chose to take the LPer's interpretation of the game for granted. You can't go turn around, and blame the devs for misleading anyone.